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Finding the Fourth Proportional to 162,661.95, 243,637.57 and 67,603.93

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Solution

The fourth proportional to 162,661.95, 243,637.57 and 67,603.93 is: 101,258.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,661.95 : 243,637.57 = 67,603.93 : x
  2. Step 2: Convert to fraction form
    162,661.95/243,637.57 = 67,603.93/x
  3. Step 3: Cross multiply
    162,661.95x = 243,637.57 × 67,603.93
  4. Step 4: Simplify right side
    162,661.95x = 16,470,856,703.06
  5. Step 5: Solve for x
    x = 16,470,856,703.06/162,661.95
  6. Step 6: Final answer
    x = 101,258.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.